From 827f3b4974c5db2968d4979fe6a0ae00ab37bdd8 Mon Sep 17 00:00:00 2001 From: Hitoshi Mitake Date: Wed, 18 Nov 2009 00:20:09 +0900 Subject: perf bench: Add memcpy() benchmark 'perf bench mem memcpy' is a benchmark suite for measuring memcpy() performance. Example on a Intel(R) Core(TM)2 Duo CPU E6850 @ 3.00GHz: | % perf bench mem memcpy -l 1GB | # Running mem/memcpy benchmark... | # Copying 1MB Bytes from 0xb7d98008 to 0xb7e99008 ... | | 726.216412 MB/Sec Signed-off-by: Hitoshi Mitake Cc: Peter Zijlstra Cc: Paul Mackerras Cc: Frederic Weisbecker LKML-Reference: <1258471212-30281-1-git-send-email-mitake@dcl.info.waseda.ac.jp> [ v2: updated changelog, clarified history of builtin-bench.c ] Signed-off-by: Ingo Molnar --- tools/perf/builtin-bench.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) (limited to 'tools/perf/builtin-bench.c') diff --git a/tools/perf/builtin-bench.c b/tools/perf/builtin-bench.c index 90c39baae0d..e043eb83092 100644 --- a/tools/perf/builtin-bench.c +++ b/tools/perf/builtin-bench.c @@ -12,6 +12,7 @@ * * Available subsystem list: * sched ... scheduler and IPC mechanism + * mem ... memory access performance * */ @@ -43,6 +44,15 @@ static struct bench_suite sched_suites[] = { NULL } }; +static struct bench_suite mem_suites[] = { + { "memcpy", + "Simple memory copy in various ways", + bench_mem_memcpy }, + { NULL, + NULL, + NULL } +}; + struct bench_subsys { const char *name; const char *summary; @@ -53,9 +63,12 @@ static struct bench_subsys subsystems[] = { { "sched", "scheduler and IPC mechanism", sched_suites }, + { "mem", + "memory access performance", + mem_suites }, { NULL, NULL, - NULL } + NULL } }; static void dump_suites(int subsys_index) -- cgit v1.2.3